Elliptical filling tube



FIG. 1 is a perspective view of the elliptical filling tube shown in one environment;

FIG. 2 is a side elevation view of the elliptical filling tube, with the opposite side elevation view being a mirror image;

FIG. 3 is a front elevation view of the elliptical filling tube;

FIG. 4 is a rear elevation view of the elliptical filling tube;

FIG. 5 is a top plan view of the elliptical filling tube; and,

FIG. 6 is a bottom plan view of the elliptical filling tube.

The broken line showing a filling funnel in FIGS. 1-6 is for illustrative purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for an elliptical filling tube, as shown and described. 